Also oh god did you see the new sphere from RC6 on jp? It's literally just Occult Treasure+Phoenix Orb, stat sphere, so I guess it stacks with Phoenix Crown. HELLO PERMANENT DOT IMMUNITY AND INFINITE HEALING ON HIT!

Well... she certainly hasn't benefited much from 7* Tridon LS. As a 6* unit in a 7* world, she has usability problems by default. 5900ish hp and 750 imp cap is WAY too low to function in RC5Q10 for example. But situationally you can use her LS to great effect, Lugina trial is the best known example I think;

double Arbonella+mitigation+earth shield lets Ultor only take 5% damage from everything there (surviving Lugina's 100k nukes with only 5k damage taken); add in the 5% earth mitigation craftable sphere and he's literally immortal there and will eat every single-target lugina nuke all trial long without taking a scratch.

So that's fun. But honestly, outside of goofy stuff like that, she's not super usable... if you have Anima she could be a ghetto immunity+heal sub option in raid though I guess, though even anima max imped is gonna have survivability issues. But generally I'd rather take even Rigness/Ulkina/Exvehl for that since better stats and they also have cure on the SBB.

Haven't gotten around to FG25+ myself, just running 1-20 autobattle to grind merit points/points for the eventual rewards. Lugina GQ was surprisingly really good though, it was challenging but generally pretty fair, and the plot was decent showing Lugina being more than just a dumbass asshole. I enjoyed it a lot. Favorite GQ so far actually.

And yea, playing relaxed is good. When you've done pretty much everything else there's no real need to rush the last few bits of content, I find that if I leave a few things unfinished it motivates me to keep logging in and overpreparing, whereas if I do everything immediately I get bored and lose login streaks. lol.